related tags: 11thcentury 16301A 1C271D 6B6153 856D4B 8C8272 AF956D B3ABA1 E0CBB2 E9E4DF alandalus astrolabe astrolabes astrolabio astrolabios bronce bronze edadmedia europa europe ffffff historyofspain madrid middleages nationalarchaeologicalmuseumofspain saidalsahali sigloxi spain toledo